Question

9,14,30,54,126,174,

Answer 1

294,原理：9＝2×2＋5,14＝3×3＋5,30＝5×5＋5,54＝7×7＋5,126＝11×11＋5,174＝13×13＋5,而2,3,5,7,11,13为从小到大的素数,所以下一个数应该为17×17＋5＝294